CN104565120A - Magnetic flow variable-liquid and variable-torque device - Google Patents
Magnetic flow variable-liquid and variable-torque device Download PDFInfo
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- CN104565120A CN104565120A CN201410743694.8A CN201410743694A CN104565120A CN 104565120 A CN104565120 A CN 104565120A CN 201410743694 A CN201410743694 A CN 201410743694A CN 104565120 A CN104565120 A CN 104565120A
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Abstract
The invention discloses a magnetic flow variable-liquid and variable-torque device, and belongs to the technical field of transfer of mechanical power. An excitation coil (12) is arranged in a groove which is formed by a left rotary magnetic plate (1) and a right rotary magnetic plate (9); a single disc type driving structure consists of each left rotary magnetic plate (1), the corresponding right rotary magnetic plate (9), the corresponding excitation coil (12) and a driving disc (8), and a plurality of single disc type driving structures are serially connected, and are fixedly connected through connecting rings (10); a magnetic flow variable-liquid and variable-torque driving medium is filled into gaps between the driving discs (8) and the left rotary magnetic plates (1) as well as the right rotary magnetic plates (2), an air flowing gap exists in each driving structure, and an array air cooling type driving structure is formed. The magnetic flow variable-liquid and variable-torque device has the advantages that the transfer torque is large, the heat radiating effect is obviously improved, the radial size is small, and the device is suitable for large-torque power transfer occasions with radial size requirement; the cooling water is not needed, the natural air cooling is used for radiating heat, and the device can be applied to occasions in which the water flow cooling cannot be adopted.
Description
Technical field
The present invention relates to a kind of magnetic flow liquid device, specifically a kind of magnetic flow liquid becomes torquer, belongs to technical field of mechanical power transfer.
Background technique
Magnetic flow liquid (Magnetorheological Fluids, MRF) be a kind of typical intelligent material, primarily of soft magnetic particles, base load liquid and the additive composition being wrapped in soft magnetic particles surface, magnetic flow liquid viscosity has field controllable characteristic.Essential characteristic is: under additional magnetic fields, particle in magnetic flow liquid forms the chain of fiber bundle-like along magnetic direction, hinder the free-flow of base load liquid, make magnetic flow liquid change the viscoplastic fluid with certain shearing force into from Newtonian fluid, strong " solidification " phenomenon occurs; And when externally-applied magnetic field disappears, magnetic flow liquid returns to free-flowing (liquid state).Magnetic flow liquid is when certain externally-applied magnetic field effect, and the characteristics such as its viscoplasticity will change, and be referred to as magnetic rheology effect.Last century the nineties, preparation technology of being correlated with magnetic flow liquid is broken through, application technical research starts to rise, it is made to apply fast development, be widely applied in fields such as damper, vibration damper, change torquer (clutch, break etc.), burnishing device, composite components, have broad application prospects.Wherein, it is take magnetic flow liquid as a kind of new type power Transfer Technology that driving medium is developed that magnetic flow liquid becomes torquer, magnetic flow liquid becomes torquer and is divided into principal and subordinate's two parts, magnetic flow liquid driving medium is full of between principal and subordinate's part, by changing the method for magnetic intensity suffered by magnetic flow liquid, change the viscosity of magnetic flow liquid, to realize the stepless control of torque between principal and subordinate's part; Compared with becoming torquer with tradition, have volume little, consume energy low, wear and tear little, noise is low and the advantage such as fast response time.
At present, the patent that relevant magnetic flow liquid becomes torquer has a lot, such as: (application number: 00104451.6), this magnetic rheological clutch does not consider heat dissipation problem to Chinese patent " radially self-pressurizing clutch with magnetic rheologic liquid " disclosed in 16 days January in 2002, and radiating effect is poor.Chinese patent " magneto-rheological stepless speed changer " (application number: 201010121882.9) disclosed in 4 days Augusts in 2010, this magnetic rheological clutch adopts polydisc to repeat stacked system transmitting torque, although comparatively high pulling torque can be transmitted, but it adopts the continuous stacked system of polydisc, and radiating effect is poor.Chinese patent disclosed in 22 days February in 2012 " a kind of Water-cooled magnetorheological soft start device " (application number: 201110334597.X), this device adopts water-cooling pattern heat radiation, but current cooling channel easily causes the increase of magnetic circuit reluctance, reduce transmitting torque and need a large amount of cooling waters, cannot be used for lack of water occasion, structural volume is huge simultaneously.
Summary of the invention
For above-mentioned prior art Problems existing, the invention provides a kind of magnetic flow liquid and become torquer, device radial dimension is little, transmitting torque is large; Significantly improve radiating effect, being applicable to radial dimension has the air-cooled transmission occasion of the high pulling torque of requirement.
To achieve these goals, this magnetic flow liquid becomes torquer and comprises the driving part be arranged on bearing support, and coordinates with described driving part the driven member installed, and is full of magnetic flow liquid driving medium between principal and subordinate's dynamic component;
Driving part comprises driving shaft, anticlockwise concentrating flux plate, right rotation concentrating flux plate, connecting ring and field coil;
Driven member comprises driven shaft, drive plate, wide sleeve and narrow sleeve, and drive plate is fixed on described driven shaft by spline, and each drive plate separates successively by described wide sleeve set on described driven shaft;
Described field coil is arranged in the groove that anticlockwise concentrating flux plate and right rotation concentrating flux plate form;
The single disc-type drive mechanism series connection be made up of multiple described anticlockwise concentrating flux plate, right rotation concentrating flux plate, field coil and drive plate, and be fixedly connected with by described connecting ring;
Be full of magnetic flow liquid driving medium in described drive plate and the gap between anticlockwise concentrating flux plate and right rotation concentrating flux plate, between each drive mechanism, there is air flow gap, form the air-cooled drive mechanism of array.
Further, described driven shaft fixedly mounts narrow sleeve by screw.
Further, described drive plate and the gap between anticlockwise concentrating flux plate and right rotation concentrating flux plate are sealed by seal ring.
Further, be positioned on the anticlockwise concentrating flux plate at two ends and right rotation concentrating flux plate and offer thermal expansion hole.
Compared with prior art, this magnetic flow liquid becomes torquer and adopts the axial array-type drive mechanism of single-deck, multiple single disc-type drive mechanism is connected and there is air flow gap between single disc-type structure, transmitting torque is large, radiating effect obtains significant lifting, and radial dimension is little, be applicable to high pulling torque transmission of power occasion radial dimension being had to requirement; In addition, this drive mechanism, without the need to cooling water, adopts from wind-cooling heat dissipating, can be used on the occasion that current cannot be adopted to cool.
Accompanying drawing explanation
Fig. 1 is agent structure schematic diagram of the present invention;
In figure: 1, anticlockwise concentrating flux plate, 2, driven shaft, 3, driving shaft, 4, collector ring, 5, seal ring, 6, bearing support, 7, thermal expansion hole, 8, drive plate, 9, right rotation concentrating flux plate, 10, connecting ring, 11, wide sleeve, 12, field coil, 13, narrow sleeve, 14, end cap.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be further described.
As shown in Figure 1, this magnetic flow liquid becomes torquer and comprises the driving part be arranged on bearing support 6, and coordinates with described driving part the driven member installed, and is full of magnetic flow liquid driving medium between principal and subordinate's dynamic component;
Driving part comprises driving shaft 3, anticlockwise concentrating flux plate 1, right rotation concentrating flux plate 9, connecting ring 10 and field coil 12;
Driven member comprises driven shaft 2, drive plate 8, wide sleeve 11 and narrow sleeve 13, and drive plate 8 is fixed on described driven shaft 2 by spline, and described wide sleeve 11 is sleeved on described driven shaft 2 and is separated successively by each drive plate 8;
Described field coil 12 is arranged in the groove that anticlockwise concentrating flux plate 1 and right rotation concentrating flux plate 9 form;
The single disc-type drive mechanism series connection be made up of multiple described anticlockwise concentrating flux plate 1, right rotation concentrating flux plate 9, field coil 12 and drive plate 8, and be fixedly connected with by described connecting ring 10;
Be full of magnetic flow liquid driving medium in described drive plate 8 and the gap between anticlockwise concentrating flux plate 1 and right rotation concentrating flux plate 9, between each drive mechanism, there is air flow gap, form the air-cooled drive mechanism of array.Radial dimension is little, and transmitting torque is large, good heat dissipation effect.
When field coil 12 is energized by collector ring 4, can produce variable magnetic field in the magnetic flow liquid working clearance, magnetic flow liquid viscosity under magnetic fields becomes large, and driving part drives driven member to rotate by the magnetic flow liquid of variable viscosity, realizes the transmission of different moment of torsion.According to the requirement of transmission power, the quantity of series circuit can be increased and decreased arbitrarily.
Further, described driven shaft 2 fixedly mounts narrow sleeve 13 by screw.To prevent drive plate about 8 play.
Further, described drive plate 8 and the gap between anticlockwise concentrating flux plate 1 and right rotation concentrating flux plate 9 are sealed by seal ring 5.
Further, be positioned on the anticlockwise concentrating flux plate 1 at two ends and right rotation concentrating flux plate 9 and offer thermal expansion hole 7.When this array-type magnetic flow liquid change torquer is in running order, the magnetic flow liquid of working clearance produces heat by frictional force effect, temperature raises, magnetic flow liquid volume expands, magnetic flow liquid is by thermal expansion hole, to offset the volumetric expansion of being heated of magnetic flow liquid, prevent the leakage of magnetic flow liquid.
In sum, this magnetic flow liquid becomes torquer and adopts the axial array-type drive mechanism of single-deck, multiple single disc-type drive mechanism is connected and there is air flow gap between single disc-type structure, transmitting torque is large, radiating effect obtains significant lifting, and radial dimension is little, be applicable to high pulling torque transmission of power occasion radial dimension being had to requirement; In addition, this drive mechanism, without the need to cooling water, adopts from wind-cooling heat dissipating, can be used on the occasion that current cannot be adopted to cool.
Claims (4)
1. magnetic flow liquid becomes a torquer, comprises the driving part be arranged on bearing support (6), and coordinates with described driving part the driven member installed;
Driving part comprises driving shaft (3), anticlockwise concentrating flux plate (1), right rotation concentrating flux plate (9), connecting ring (10) and field coil (12);
Driven member comprises driven shaft (2), drive plate (8), wide sleeve (11) and narrow sleeve (13), drive plate (8) is fixed on described driven shaft (2) by spline, and described wide sleeve (11) is sleeved on described driven shaft (2) and is separated successively by each drive plate (8);
It is characterized in that, described field coil (12) is arranged in the groove that anticlockwise concentrating flux plate (1) and right rotation concentrating flux plate (9) form;
The single disc-type drive mechanism series connection be made up of multiple described anticlockwise concentrating flux plate (1), right rotation concentrating flux plate (9), field coil (12) and drive plate (8), and be fixedly connected with by described connecting ring (10);
Magnetic flow liquid driving medium is full of in described drive plate (8) and the gap between anticlockwise concentrating flux plate (1) and right rotation concentrating flux plate (9), there is air flow gap between each drive mechanism, form the air-cooled drive mechanism of array.
2. a kind of magnetic flow liquid according to claim 1 becomes torquer, it is characterized in that,
Described driven shaft (2) fixedly mounts narrow sleeve (13) by screw.
3. a kind of magnetic flow liquid according to claim 1 becomes torquer, it is characterized in that,
Described drive plate (8) and the gap between anticlockwise concentrating flux plate (1) and right rotation concentrating flux plate (9) are sealed by seal ring (5).
4. a kind of magnetic flow liquid according to claim 1 becomes torquer, it is characterized in that,
Be positioned on the anticlockwise concentrating flux plate (1) at two ends and right rotation concentrating flux plate (9) and offer thermal expansion hole (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743694.8A CN104565120B (en) | 2014-12-08 | 2014-12-08 | A kind of magnetic flow liquid becomes torquer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410743694.8A CN104565120B (en) | 2014-12-08 | 2014-12-08 | A kind of magnetic flow liquid becomes torquer |
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| CN104565120A true CN104565120A (en) | 2015-04-29 |
| CN104565120B CN104565120B (en) | 2017-03-15 |
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| CN201410743694.8A Active CN104565120B (en) | 2014-12-08 | 2014-12-08 | A kind of magnetic flow liquid becomes torquer |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299086A (en) * | 2015-10-16 | 2016-02-03 | 中国矿业大学 | Water cooling type multi-plate magneto-rheological clutch |
| CN106838062A (en) * | 2017-03-30 | 2017-06-13 | 东北大学 | A kind of Y types brake disc magnetic rheological brake |
| CN111697785A (en) * | 2020-07-20 | 2020-09-22 | 中国矿业大学 | Non-contact magnetorheological suspensions transmission |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3390748A (en) * | 1966-12-27 | 1968-07-02 | Borg Warner | Fluid shear coupling |
| US5823309A (en) * | 1997-05-23 | 1998-10-20 | General Motors Corporation | Magnetorheological transmission clutch |
| CN2575371Y (en) * | 2002-07-12 | 2003-09-24 | 华侨大学 | Internal differential hydraulic cylinder |
| CN1295453C (en) * | 2003-09-08 | 2007-01-17 | 重庆大学 | Magnetorheological continuously variable transmission |
| CN103807329A (en) * | 2014-02-27 | 2014-05-21 | 福州大学 | Eddy current retarder device based on magnetorheological effect |
| CN204371988U (en) * | 2014-12-08 | 2015-06-03 | 中国矿业大学 | Magnetic flow liquid becomes torquer |
-
2014
- 2014-12-08 CN CN201410743694.8A patent/CN104565120B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3390748A (en) * | 1966-12-27 | 1968-07-02 | Borg Warner | Fluid shear coupling |
| US5823309A (en) * | 1997-05-23 | 1998-10-20 | General Motors Corporation | Magnetorheological transmission clutch |
| CN2575371Y (en) * | 2002-07-12 | 2003-09-24 | 华侨大学 | Internal differential hydraulic cylinder |
| CN1295453C (en) * | 2003-09-08 | 2007-01-17 | 重庆大学 | Magnetorheological continuously variable transmission |
| CN103807329A (en) * | 2014-02-27 | 2014-05-21 | 福州大学 | Eddy current retarder device based on magnetorheological effect |
| CN204371988U (en) * | 2014-12-08 | 2015-06-03 | 中国矿业大学 | Magnetic flow liquid becomes torquer |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299086A (en) * | 2015-10-16 | 2016-02-03 | 中国矿业大学 | Water cooling type multi-plate magneto-rheological clutch |
| CN106838062A (en) * | 2017-03-30 | 2017-06-13 | 东北大学 | A kind of Y types brake disc magnetic rheological brake |
| CN106838062B (en) * | 2017-03-30 | 2018-11-27 | 东北大学 | A kind of Y type brake disc magnetic rheological brake |
| CN111697785A (en) * | 2020-07-20 | 2020-09-22 | 中国矿业大学 | Non-contact magnetorheological suspensions transmission |
| CN111697785B (en) * | 2020-07-20 | 2024-06-11 | 中国矿业大学 | Non-contact magnetorheological fluid transmission device |
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| CN104565120B (en) | 2017-03-15 |
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Application publication date: 20150429 Assignee: JIANGSU TIANWO HEAVY INDUSTRY TECHNOLOGY CO.,LTD. Assignor: CHINA University OF MINING AND TECHNOLOGY Contract record no.: X2022980015964 Denomination of invention: A Magnetorheological Fluid Variable Torque Device Granted publication date: 20170315 License type: Common License Record date: 20220926 |